The phrase "with concern" refers to a sentiment of worry, unease, or apprehension about something or someone. Synonyms for this phrase include "anxiously," "nervously," "troubledly," "uneasily," "apprehensively," and "worriedly." These words all express a feeling of disquiet or unrest, indicating that something is causing distress or consternation. Other related terms include "with care," "with caution," and "with prudence," which suggest a need for careful attention and consideration. Overall, using synonyms for "with concern" can help convey a sense of emotional investment or involvement with a given situation, highlighting the significance and importance of the issue at hand.